plugins/orders/lib/code_numbering.rb
module CodeNumbering
module ClassMethods
def code_numbering(field, options = {})
class_attribute :code_numbering_field
class_attribute :code_numbering_options
self.code_numbering_field = field
self.code_numbering_options = options
before_create :create_code_numbering
include CodeNumbering::InstanceMethods
end
end
module InstanceMethods
def code
self.attributes[self.code_numbering_field.to_s]
end
def code_scope
scope = self.code_numbering_options[:scope]
case scope
when Symbol
self.send scope
when Proc
instance_exec &scope
else
self.class
end
end
def code_maximum
self.code_scope.maximum(self.code_numbering_field) || 0
end
def create_code_numbering
max = self.code_numbering_options[:start].to_i - 1 if self.code_numbering_options[:start]
max = self.code_maximum
self.send "#{self.code_numbering_field}=", max + 1
end
def reset_scope_code_numbering
max = self.code_numbering_options[:start].to_i - 1 if self.code_numbering_options[:start]
max ||= 1
self.code_scope.order(:created_at).each do |record|
record.update_column self.code_numbering_field, max
max += 1
end
self.reload
end
end
end
ApplicationRecord.extend CodeNumbering::ClassMethods